diff --git a/letsencrypt/client/client.py b/letsencrypt/client/client.py
index 7fd363bd1..0788800b2 100755
--- a/letsencrypt/client/client.py
+++ b/letsencrypt/client/client.py
@@ -9,7 +9,6 @@ import csv
 import requests
 
 from letsencrypt.client.acme import acme_object_validate
-from letsencrypt.client.sni_challenge import SNI_Challenge
 from letsencrypt.client import configurator, apache_configurator
 from letsencrypt.client import logger, display
 from letsencrypt.client import le_util, crypto_util